godot/platform/android/java_class_wrapper.cpp

/*************************************************************************/
/*  java_class_wrapper.cpp                                               */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "java_class_wrapper.h"
#include "thread_jandroid.h"


bool JavaClass::_call_method(JavaObject* p_instance,const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error,Variant& ret) {

	Map<StringName,List<MethodInfo> >::Element *M=methods.find(p_method);
	if (!M)
		return false;

	JNIEnv *env = ThreadAndroid::get_env();

	MethodInfo *method=NULL;
	for (List<MethodInfo>::Element *E=M->get().front();E;E=E->next()) {

		if (!p_instance && !E->get()._static) {
			r_error.error=Variant::CallError::CALL_ERROR_INSTANCE_IS_NULL;
			continue;
		}

		int pc = E->get().param_types.size();
		if (pc>p_argcount) {

			r_error.error=Variant::CallError::CALL_ERROR_TOO_FEW_ARGUMENTS;
			r_error.argument=pc;
			continue;
		}
		if (pc<p_argcount) {

			r_error.error=Variant::CallError::CALL_ERROR_TOO_MANY_ARGUMENTS;
			r_error.argument=pc;
			continue;
		}
		uint32_t *ptypes=E->get().param_types.ptr();
		bool valid=true;

		for(int i=0;i<pc;i++) {

			Variant::Type arg_expected=Variant::NIL;
			switch(ptypes[i]) {

				case ARG_TYPE_VOID: {
					//bug?
				} break;
				case ARG_TYPE_BOOLEAN: {
					if (p_args[i]->get_type()!=Variant::BOOL)
						arg_expected=Variant::BOOL;
				} break;
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_BYTE:
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_CHAR:
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_SHORT:
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_INT:
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_LONG:
				case ARG_TYPE_BYTE:
				case ARG_TYPE_CHAR:
				case ARG_TYPE_SHORT:
				case ARG_TYPE_INT:
				case ARG_TYPE_LONG: {

					if (!p_args[i]->is_num())
						arg_expected=Variant::INT;

				} break;
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_FLOAT:
				case ARG_NUMBER_CLASS_BIT|ARG_TYPE_DOUBLE:
				case ARG_TYPE_FLOAT:
				case ARG_TYPE_DOUBLE: {

					if (!p_args[i]->is_num())
						arg_expected=Variant::REAL;

				} break;
				case ARG_TYPE_STRING: {

					if (p_args[i]->get_type()!=Variant::STRING)
						arg_expected=Variant::STRING;

				} break;
				case ARG_TYPE_CLASS: {

					if (p_args[i]->get_type()!=Variant::OBJECT)
						arg_expected=Variant::OBJECT;
					else {

						Ref<Reference> ref = *p_args[i];
						if (!ref.is_null()) {
							if (ref->cast_to<JavaObject>() ) {

								Ref<JavaObject> jo=ref;
								//could be faster
								jclass c = env->FindClass(E->get().param_sigs[i].operator String().utf8().get_data());
								if (!c || !env->IsInstanceOf(jo->instance,c)) {

									arg_expected=Variant::OBJECT;
								} else {
									//ok
								}
							} else {
								arg_expected=Variant::OBJECT;
							}

						}
					}

				} break;
				default: {

					if (p_args[i]->get_type()!=Variant::ARRAY)
						arg_expected=Variant::ARRAY;

				} break;

			}

			if (arg_expected!=Variant::NIL) {
				r_error.error=Variant::CallError::CALL_ERROR_INVALID_ARGUMENT;
				r_error.argument=i;
				r_error.expected=arg_expected;
				valid=false;
				break;

			}

		}
		if (!valid)
			continue;


		method=&E->get();
		break;

	}

	if (!method)
		return true; //no version convinces



	r_error.error=Variant::CallError::CALL_OK;

	jvalue *argv=NULL;

	if (method->param_types.size()) {

		argv=(jvalue*)alloca( sizeof(jvalue)*method->param_types.size() );
	}

	List<jobject> to_free;
	for(int i=0;i<method->param_types.size();i++) {

		switch(method->param_types[i]) {
			case ARG_TYPE_VOID:  {
				//can't happen
				argv[i].l=NULL; //I hope this works
			} break;

			case ARG_TYPE_BOOLEAN: {
				argv[i].z=*p_args[i];
			} break;
			case ARG_TYPE_BYTE: {
				argv[i].b=*p_args[i];
			} break;
			case ARG_TYPE_CHAR: {
				argv[i].c=*p_args[i];
			} break;
			case ARG_TYPE_SHORT: {
				argv[i].s=*p_args[i];
			} break;
			case ARG_TYPE_INT: {
				argv[i].i=*p_args[i];
			} break;
			case ARG_TYPE_LONG: {
				argv[i].j=*p_args[i];
			} break;
			case ARG_TYPE_FLOAT: {
				argv[i].f=*p_args[i];
			} break;
			case ARG_TYPE_DOUBLE: {
				argv[i].d=*p_args[i];
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_BOOLEAN: {
				jclass bclass = env->FindClass("java/lang/Boolean");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(Z)V");
				jvalue val;
				val.z = (bool)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_BYTE: {
				jclass bclass = env->FindClass("java/lang/Byte");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(B)V");
				jvalue val;
				val.b = (int)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_CHAR: {
				jclass bclass = env->FindClass("java/lang/Character");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(C)V");
				jvalue val;
				val.c = (int)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_SHORT: {
				jclass bclass = env->FindClass("java/lang/Short");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(S)V");
				jvalue val;
				val.s = (int)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_INT: {
				jclass bclass = env->FindClass("java/lang/Integer");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(I)V");
				jvalue val;
				val.i = (int)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_LONG: {
				jclass bclass = env->FindClass("java/lang/Long");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(J)V");
				jvalue val;
				val.j = (int64_t)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_FLOAT: {
				jclass bclass = env->FindClass("java/lang/Float");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(F)V");
				jvalue val;
				val.f = (float)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_NUMBER_CLASS_BIT|ARG_TYPE_DOUBLE: {
				jclass bclass = env->FindClass("java/lang/Double");
				jmethodID ctor = env->GetMethodID(bclass, "<init>", "(D)V");
				jvalue val;
				val.d = (double)(*p_args[i]);
				jobject obj = env->NewObjectA(bclass, ctor, &val);
				argv[i].l = obj;
				to_free.push_back(obj);
			} break;
			case ARG_TYPE_STRING: {
				String s = *p_args[i];
				jstring jStr = env->NewStringUTF(s.utf8().get_data());
				argv[i].l=jStr;
				to_free.push_back(jStr);
			} break;
			case ARG_TYPE_CLASS: {

				Ref<JavaObject> jo=*p_args[i];
				if (jo.is_valid()) {

					argv[i].l=jo->instance;
				} else {
					argv[i].l=NULL; //I hope this works
				}

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_BOOLEAN: {

				Array arr = *p_args[i];
				jbooleanArray a = env->NewBooleanArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jboolean val = arr[j];
					env->SetBooleanArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_BYTE: {

				Array arr = *p_args[i];
				jbyteArray a = env->NewByteArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jbyte val = arr[j];
					env->SetByteArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);


			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_CHAR: {

				Array arr = *p_args[i];
				jcharArray a = env->NewCharArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jchar val = arr[j];
					env->SetCharArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_SHORT: {

				Array arr = *p_args[i];
				jshortArray a = env->NewShortArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jshort val = arr[j];
					env->SetShortArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_INT: {

				Array arr = *p_args[i];
				jintArray a = env->NewIntArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jint val = arr[j];
					env->SetIntArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);
			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_LONG: {
				Array arr = *p_args[i];
				jlongArray a = env->NewLongArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jlong val = arr[j];
					env->SetLongArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_FLOAT: {

				Array arr = *p_args[i];
				jfloatArray a = env->NewFloatArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jfloat val = arr[j];
					env->SetFloatArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);


			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_DOUBLE: {

				Array arr = *p_args[i];
				jdoubleArray a = env->NewDoubleArray(arr.size());
				for(int j=0;j<arr.size();j++) {
					jdouble val = arr[j];
					env->SetDoubleArrayRegion(a,j,1,&val);
				}
				argv[i].l=a;
				to_free.push_back(a);

			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_STRING: {

				Array arr = *p_args[i];
				jobjectArray a = env->NewObjectArray(arr.size(),env->FindClass("java/lang/String"),NULL);
				for(int j=0;j<arr.size();j++) {

					String s = arr[j];
					jstring jStr = env->NewStringUTF(s.utf8().get_data());
					env->SetObjectArrayElement(a,j,jStr);
					to_free.push_back(jStr);
				}

				argv[i].l=a;
				to_free.push_back(a);
			} break;
			case ARG_ARRAY_BIT|ARG_TYPE_CLASS: {

				argv[i].l=NULL;
			} break;
		}
	}

	r_error.error=Variant::CallError::CALL_OK;
	bool success=true;

	switch(method->return_type) {


		case ARG_TYPE_VOID: {
			if (method->_static) {
				env->CallStaticVoidMethodA(_class,method->method,argv);
			} else {
				env->CallVoidMethodA(p_instance->instance,method->method,argv);
			}
			ret=Variant();

		} break;
		case ARG_TYPE_BOOLEAN: {
			if (method->_static) {
				ret=env->CallStaticBooleanMethodA(_class,method->method,argv);
			} else {
				ret=env->CallBooleanMethodA(p_instance->instance,method->method,argv);
			}
		} break;
		case ARG_TYPE_BYTE: {
			if (method->_static) {
				ret=env->CallStaticByteMethodA(_class,method->method,argv);
			} else {
				ret=env->CallByteMethodA(p_instance->instance,method->method,argv);
			}
		} break;
		case ARG_TYPE_CHAR: {

			if (method->_static) {
				ret=env->CallStaticCharMethodA(_class,method->method,argv);
			} else {
				ret=env->CallCharMethodA(p_instance->instance,method->method,argv);
			}
		} break;
		case ARG_TYPE_SHORT: {

			if (method->_static) {
				ret=env->CallStaticShortMethodA(_class,method->method,argv);
			} else {
				ret=env->CallShortMethodA(p_instance->instance,method->method,argv);
			}

		} break;
		case ARG_TYPE_INT: {

			if (method->_static) {
				ret=env->CallStaticIntMethodA(_class,method->method,argv);
			} else {
				ret=env->CallIntMethodA(p_instance->instance,method->method,argv);
			}

		} break;
		case ARG_TYPE_LONG: {

			if (method->_static) {
				ret=env->CallStaticLongMethodA(_class,method->method,argv);
			} else {
				ret=env->CallLongMethodA(p_instance->instance,method->method,argv);
			}

		} break;
		case ARG_TYPE_FLOAT: {

			if (method->_static) {
				ret=env->CallStaticFloatMethodA(_class,method->method,argv);
			} else {
				ret=env->CallFloatMethodA(p_instance->instance,method->method,argv);
			}

		} break;
		case ARG_TYPE_DOUBLE: {

			if (method->_static) {
				ret=env->CallStaticDoubleMethodA(_class,method->method,argv);
			} else {
				ret=env->CallDoubleMethodA(p_instance->instance,method->method,argv);
			}

		} break;
		default: {

			jobject obj;
			if (method->_static) {
				obj=env->CallStaticObjectMethodA(_class,method->method,argv);
			} else {
				obj=env->CallObjectMethodA(p_instance->instance,method->method,argv);
			}

			if (!obj) {
				ret=Variant();
			} else {

				if (!_convert_object_to_variant(env, obj, ret,method->return_type)) {
					ret=Variant();
					r_error.error=Variant::CallError::CALL_ERROR_INVALID_METHOD;
					success=false;
				}
				env->DeleteLocalRef(obj);
			}

		} break;

	}

	for(List<jobject>::Element *E=to_free.front();E;E=E->next()) {
		env->DeleteLocalRef(E->get());
	}

	return success;
}

Variant JavaClass::call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) {

	Variant ret;
	bool found = _call_method(NULL,p_method,p_args,p_argcount,r_error,ret);
	if (found) {
		return ret;
	}

	return Reference::call(p_method,p_args,p_argcount,r_error);
}

JavaClass::JavaClass() {

}

/////////////////////

Variant JavaObject::call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error){

	return Variant();
}

JavaObject::JavaObject(const Ref<JavaClass>& p_base,jobject *p_instance) {

}

JavaObject::~JavaObject(){

}


////////////////////

void JavaClassWrapper::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("wrap:JavaClass","name"),&JavaClassWrapper::wrap);
}


bool JavaClassWrapper::_get_type_sig(JNIEnv *env,jobject obj,uint32_t& sig,String&strsig) {

	jstring name2 = (jstring)env->CallObjectMethod(obj, Class_getName);
	String str_type = env->GetStringUTFChars( name2, NULL );
	print_line("name: "+str_type);
	env->DeleteLocalRef(name2);
	uint32_t t=0;

	if (str_type.begins_with("[")) {

		t=JavaClass::ARG_ARRAY_BIT;
		strsig="[";
		str_type=str_type.substr(1,str_type.length()-1);
		if (str_type.begins_with("[")) {
			print_line("Nested arrays not supported for type: "+str_type);
			return false;
		}
		if (str_type.begins_with("L")) {
			str_type=str_type.substr(1,str_type.length()-2); //ok it's a class
		}
	}

	if (str_type=="void" || str_type=="V") {
		t|=JavaClass::ARG_TYPE_VOID;
		strsig+="V";
	} else if (str_type=="boolean" || str_type=="Z") {
		t|=JavaClass::ARG_TYPE_BOOLEAN;
		strsig+="Z";
	} else if (str_type=="byte" || str_type=="B") {
		t|=JavaClass::ARG_TYPE_BYTE;
		strsig+="B";
	} else if (str_type=="char" || str_type=="C") {
		t|=JavaClass::ARG_TYPE_CHAR;
		strsig+="C";
	} else if (str_type=="short" || str_type=="S") {
		t|=JavaClass::ARG_TYPE_SHORT;
		strsig+="S";
	} else if (str_type=="int" || str_type=="I") {
		t|=JavaClass::ARG_TYPE_INT;
		strsig+="I";
	} else if (str_type=="long" || str_type=="J") {
		t|=JavaClass::ARG_TYPE_LONG;
		strsig+="J";
	} else if (str_type=="float" || str_type=="F") {
		t|=JavaClass::ARG_TYPE_FLOAT;
		strsig+="F";
	} else if (str_type=="double" || str_type=="D") {
		t|=JavaClass::ARG_TYPE_DOUBLE;
		strsig+="D";
	} else if (str_type=="java.lang.String") {
		t|=JavaClass::ARG_TYPE_STRING;
		strsig+="Ljava/lang/String;";
	} else if (str_type=="java.lang.Boolean") {
		t|=JavaClass::ARG_TYPE_BOOLEAN|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Boolean;";
	} else if (str_type=="java.lang.Byte") {
		t|=JavaClass::ARG_TYPE_BYTE|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Byte;";
	} else if (str_type=="java.lang.Character") {
		t|=JavaClass::ARG_TYPE_CHAR|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Character;";
	} else if (str_type=="java.lang.Short") {
		t|=JavaClass::ARG_TYPE_SHORT|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Short;";
	} else if (str_type=="java.lang.Integer") {
		t|=JavaClass::ARG_TYPE_INT|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Integer;";
	} else if (str_type=="java.lang.Long") {
		t|=JavaClass::ARG_TYPE_LONG|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Long;";
	} else if (str_type=="java.lang.Float") {
		t|=JavaClass::ARG_TYPE_FLOAT|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Float;";
	} else if (str_type=="java.lang.Double") {
		t|=JavaClass::ARG_TYPE_DOUBLE|JavaClass::ARG_NUMBER_CLASS_BIT;
		strsig+="Ljava/lang/Double;";
	} else {
		//a class likely
		strsig+="L"+str_type.replace(".","/")+";";
		t|=JavaClass::ARG_TYPE_CLASS;
	}

	sig=t;


	return true;

}

bool JavaClass::_convert_object_to_variant(JNIEnv * env, jobject obj, Variant& var,uint32_t p_sig) {

	if (!obj) {
		var=Variant(); //seems null is just null...
		return true;
	}


	switch(p_sig) {

		case ARG_TYPE_VOID: {

			return Variant();
		} break;
		case ARG_TYPE_BOOLEAN|ARG_NUMBER_CLASS_BIT: {

			var = env->CallBooleanMethod(obj, JavaClassWrapper::singleton->Boolean_booleanValue);
			return true;
		} break;
		case ARG_TYPE_BYTE|ARG_NUMBER_CLASS_BIT: {

			var = env->CallByteMethod(obj, JavaClassWrapper::singleton->Byte_byteValue);
			return true;

		} break;
		case ARG_TYPE_CHAR|ARG_NUMBER_CLASS_BIT: {

			var = env->CallCharMethod(obj, JavaClassWrapper::singleton->Character_characterValue);
			return true;

		} break;
		case ARG_TYPE_SHORT|ARG_NUMBER_CLASS_BIT: {

			var = env->CallShortMethod(obj, JavaClassWrapper::singleton->Short_shortValue);
			return true;

		} break;
		case ARG_TYPE_INT|ARG_NUMBER_CLASS_BIT: {

			var = env->CallIntMethod(obj, JavaClassWrapper::singleton->Integer_integerValue);
			return true;

		} break;
		case ARG_TYPE_LONG|ARG_NUMBER_CLASS_BIT: {

			var = env->CallLongMethod(obj, JavaClassWrapper::singleton->Long_longValue);
			return true;

		} break;
		case ARG_TYPE_FLOAT|ARG_NUMBER_CLASS_BIT: {

			var = env->CallFloatMethod(obj, JavaClassWrapper::singleton->Float_floatValue);
			return true;

		} break;
		case ARG_TYPE_DOUBLE|ARG_NUMBER_CLASS_BIT: {

			var = env->CallDoubleMethod(obj, JavaClassWrapper::singleton->Double_doubleValue);
			return true;
		} break;
		case ARG_TYPE_STRING: {

			var = String::utf8(env->GetStringUTFChars( (jstring)obj, NULL ));
			return true;
		} break;
		case ARG_TYPE_CLASS: {

			return false;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_VOID: {

			var = Array(); // ?
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_BOOLEAN: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jboolean val;
				env->GetBooleanArrayRegion((jbooleanArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;

		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_BYTE: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jbyte val;
				env->GetByteArrayRegion((jbyteArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_CHAR: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jchar val;
				env->GetCharArrayRegion((jcharArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_SHORT: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jshort val;
				env->GetShortArrayRegion((jshortArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_INT: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jint val;
				env->GetIntArrayRegion((jintArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_LONG: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jlong val;
				env->GetLongArrayRegion((jlongArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_FLOAT: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jfloat val;
				env->GetFloatArrayRegion((jfloatArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_DOUBLE: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jdouble val;
				env->GetDoubleArrayRegion((jdoubleArray)arr,0,1,&val);
				ret.push_back(val);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_BOOLEAN: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					bool val = env->CallBooleanMethod(o, JavaClassWrapper::singleton->Boolean_booleanValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;

		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_BYTE: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					int val = env->CallByteMethod(o, JavaClassWrapper::singleton->Byte_byteValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_CHAR: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					int val = env->CallCharMethod(o, JavaClassWrapper::singleton->Character_characterValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_SHORT: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					int val = env->CallShortMethod(o, JavaClassWrapper::singleton->Short_shortValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_INT: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					int val = env->CallIntMethod(o, JavaClassWrapper::singleton->Integer_integerValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_LONG: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					int64_t val = env->CallLongMethod(o, JavaClassWrapper::singleton->Long_longValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_FLOAT: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					float val = env->CallFloatMethod(o, JavaClassWrapper::singleton->Float_floatValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_NUMBER_CLASS_BIT|ARG_ARRAY_BIT|ARG_TYPE_DOUBLE: {
			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					double val = env->CallDoubleMethod(o, JavaClassWrapper::singleton->Double_doubleValue);
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;

		case ARG_ARRAY_BIT|ARG_TYPE_STRING: {

			Array ret;
			jobjectArray arr = (jobjectArray)obj;

			int count = env->GetArrayLength(arr);

			for (int i=0; i<count; i++) {

				jobject o = env->GetObjectArrayElement(arr, i);
				if (!o)
					ret.push_back(Variant());
				else {
					String val = String::utf8(env->GetStringUTFChars( (jstring)o, NULL ));
					ret.push_back(val);

				}
				env->DeleteLocalRef(o);
			}

			var=ret;
			return true;
		} break;
		case ARG_ARRAY_BIT|ARG_TYPE_CLASS: {

		} break;
	}

	return false;

}


Ref<JavaClass> JavaClassWrapper::wrap(const String& p_class) {

	if (class_cache.has(p_class))
		return class_cache[p_class];


	JNIEnv *env = ThreadAndroid::get_env();

	jclass bclass = env->FindClass(p_class.utf8().get_data());
	ERR_FAIL_COND_V(!bclass,Ref<JavaClass>());

	//jmethodID getDeclaredMethods = env->GetMethodID(bclass,"getDeclaredMethods", "()[Ljava/lang/reflect/Method;");

	//ERR_FAIL_COND_V(!getDeclaredMethods,Ref<JavaClass>());

	jobjectArray methods = (jobjectArray)env->CallObjectMethod(bclass, getDeclaredMethods);

	ERR_FAIL_COND_V(!methods,Ref<JavaClass>());


	Ref<JavaClass> java_class = memnew( JavaClass );

	int count = env->GetArrayLength(methods);

	for (int i=0; i<count; i++) {

		jobject obj = env->GetObjectArrayElement(methods, i);
		ERR_CONTINUE(!obj);


		jstring name = (jstring)env->CallObjectMethod(obj, getName);
		String str_method = env->GetStringUTFChars( name, NULL );
		env->DeleteLocalRef(name);

		Vector<String> params;

		jint mods = env->CallIntMethod(obj,getModifiers);

		if (!(mods&0x0001)) {
			env->DeleteLocalRef(obj);
			continue; //not public bye
		}



		jobjectArray param_types = (jobjectArray)env->CallObjectMethod(obj, getParameterTypes);
		int count2=env->GetArrayLength(param_types);

		if (!java_class->methods.has(str_method)) {
			java_class->methods[str_method]=List<JavaClass::MethodInfo>();
		}

		JavaClass::MethodInfo mi;
		mi._static = (mods&0x8)!=0;
		bool valid=true;
		String signature="(";

		for(int j=0;j<count2;j++) {

			jobject obj2 = env->GetObjectArrayElement(param_types, j);
			String strsig;
			uint32_t sig=0;
			if (!_get_type_sig(env,obj2,sig,strsig)) {
				valid=false;
				env->DeleteLocalRef(obj2);
				break;
			}
			signature+=strsig;
			mi.param_types.push_back(sig);
			mi.param_sigs.push_back(strsig);
			env->DeleteLocalRef(obj2);

		}

		if (!valid) {
			print_line("Method Can't be bound (unsupported arguments): "+p_class+"::"+str_method);
			env->DeleteLocalRef(obj);
			env->DeleteLocalRef(param_types);
			continue;
		}

		signature+=")";

		jobject return_type = (jobject)env->CallObjectMethod(obj, getReturnType);


		String strsig;
		uint32_t sig=0;
		if (!_get_type_sig(env,return_type,sig,strsig)) {
			print_line("Method Can't be bound (unsupported return type): "+p_class+"::"+str_method);
			env->DeleteLocalRef(obj);
			env->DeleteLocalRef(param_types);
			env->DeleteLocalRef(return_type);
			continue;
		}

		signature+=strsig;
		mi.return_type=sig;

		print_line("METHOD: "+str_method+" SIG: "+signature+" static: "+itos(mi._static));

		bool discard=false;

		for(List<JavaClass::MethodInfo>::Element *E=java_class->methods[str_method].front();E;E=E->next()) {

			float new_likeliness=0;
			float existing_likeliness=0;

			if (E->get().param_types.size()!=mi.param_types.size())
				continue;
			bool valid=true;
			for(int j=0;j<E->get().param_types.size();j++) {

				Variant::Type _new;
				float new_l;
				Variant::Type existing;
				float existing_l;
				JavaClass::_convert_to_variant_type(E->get().param_types[j],existing,existing_l);
				JavaClass::_convert_to_variant_type(mi.param_types[j],_new,new_l);
				if (_new!=existing) {
					valid=false;
					break;
				}
				new_likeliness+=new_l;
				existing_likeliness=existing_l;

			}

			if (!valid)
				continue;

			if (new_likeliness>existing_likeliness) {
				java_class->methods[str_method].erase(E);
				print_line("replace old");
				break;
			} else {
				discard=true;
				print_line("old is better");
			}


		}

		if (!discard) {
			if (mi._static)
				mi.method = env->GetStaticMethodID(bclass, str_method.utf8().get_data(), signature.utf8().get_data());
			else
				mi.method = env->GetMethodID(bclass, str_method.utf8().get_data(), signature.utf8().get_data());

			ERR_CONTINUE(!mi.method);

			java_class->methods[str_method].push_back(mi);
		}

		env->DeleteLocalRef(obj);
		env->DeleteLocalRef(param_types);
		env->DeleteLocalRef(return_type);




		//args[i] = _jobject_to_variant(env, obj);
//		print_line("\targ"+itos(i)+": "+Variant::get_type_name(args[i].get_type()));

	};

	env->DeleteLocalRef(methods);

	jobjectArray fields = (jobjectArray)env->CallObjectMethod(bclass, getFields);

	count = env->GetArrayLength(fields);

	for (int i=0; i<count; i++) {

		jobject obj = env->GetObjectArrayElement(fields, i);
		ERR_CONTINUE(!obj);

		jstring name = (jstring)env->CallObjectMethod(obj, Field_getName);
		String str_field = env->GetStringUTFChars( name, NULL );
		env->DeleteLocalRef(name);
		print_line("FIELD: "+str_field);
		int mods = env->CallIntMethod(obj,Field_getModifiers);
		if ((mods&0x8) && (mods&0x10) && (mods&0x1)) { //static final public!

			jobject objc = env->CallObjectMethod(obj, Field_get,NULL);
			if (objc) {


				uint32_t sig;
				String strsig;
				jclass cl = env->GetObjectClass(objc);
				if (JavaClassWrapper::_get_type_sig(env,cl,sig,strsig)) {

					if ((sig&JavaClass::ARG_TYPE_MASK)<=JavaClass::ARG_TYPE_STRING) {

						Variant value;
						if (JavaClass::_convert_object_to_variant(env,objc,value,sig)) {

							java_class->constant_map[str_field]=value;
						}
					}
				}

				env->DeleteLocalRef(cl);
			}


			env->DeleteLocalRef(objc);

		}
		env->DeleteLocalRef(obj);
	}

	env->DeleteLocalRef(fields);


	return Ref<JavaClass>();
}

JavaClassWrapper *JavaClassWrapper::singleton=NULL;

JavaClassWrapper::JavaClassWrapper(jobject p_activity) {

	singleton=this;

	JNIEnv *env = ThreadAndroid::get_env();

	jclass activityClass = env->FindClass("org/godotengine/godot/Godot");
	jmethodID getClassLoader = env->GetMethodID(activityClass,"getClassLoader", "()Ljava/lang/ClassLoader;");
	classLoader = env->CallObjectMethod(p_activity, getClassLoader);
	classLoader=(jclass)env->NewGlobalRef(classLoader);
	jclass classLoaderClass = env->FindClass("java/lang/ClassLoader");
	findClass = env->GetMethodID(classLoaderClass, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");

	jclass bclass = env->FindClass("java/lang/Class");
	getDeclaredMethods = env->GetMethodID(bclass,"getDeclaredMethods", "()[Ljava/lang/reflect/Method;");
	getFields = env->GetMethodID(bclass,"getFields", "()[Ljava/lang/reflect/Field;");
	Class_getName = env->GetMethodID(bclass,"getName", "()Ljava/lang/String;");
	//
	bclass = env->FindClass("java/lang/reflect/Method");
	getParameterTypes = env->GetMethodID(bclass,"getParameterTypes", "()[Ljava/lang/Class;");
	getReturnType = env->GetMethodID(bclass,"getReturnType", "()Ljava/lang/Class;");
	getName = env->GetMethodID(bclass,"getName", "()Ljava/lang/String;");
	getModifiers = env->GetMethodID(bclass,"getModifiers", "()I");
	///
	bclass = env->FindClass("java/lang/reflect/Field");
	Field_getName = env->GetMethodID(bclass,"getName", "()Ljava/lang/String;");
	Field_getModifiers = env->GetMethodID(bclass,"getModifiers", "()I");
	Field_get = env->GetMethodID(bclass,"get", "(Ljava/lang/Object;)Ljava/lang/Object;");
	// each
	bclass = env->FindClass("java/lang/Boolean");
	Boolean_booleanValue = env->GetMethodID(bclass, "booleanValue", "()Z");

	bclass = env->FindClass("java/lang/Byte");
	Byte_byteValue = env->GetMethodID(bclass, "byteValue", "()B");

	bclass = env->FindClass("java/lang/Character");
	Character_characterValue = env->GetMethodID(bclass, "charValue", "()C");

	bclass = env->FindClass("java/lang/Short");
	Short_shortValue = env->GetMethodID(bclass, "shortValue", "()S");

	bclass = env->FindClass("java/lang/Integer");
	Integer_integerValue = env->GetMethodID(bclass, "intValue", "()I");

	bclass = env->FindClass("java/lang/Long");
	Long_longValue = env->GetMethodID(bclass, "longValue", "()J");

	bclass = env->FindClass("java/lang/Float");
	Float_floatValue = env->GetMethodID(bclass, "floatValue", "()F");

	bclass = env->FindClass("java/lang/Double");
	Double_doubleValue = env->GetMethodID(bclass, "doubleValue", "()D");

}